CHAPTER - 3	WORKS REQUIRED BEFORE, DURING AND AFTER DEPLOYMENT OF TRACK MACHINES
3.0	General
3.1	Tie Tamping machines
3.1.1	Pre-requisites for introduction of tamping machines
3.1.2	Pre-tamping operations
3.1.3	Operations during tamping
3.1.4	Post tamping operations.
3.2	Points & crossing tamping machine (Unimat)
3.2.1	Pre-tamping operation
3.2.2	Operations during tamping
3.2.3	Post tamping operations
3.3	Ballast Cleaning Machines (BCM)
3.3.1	Pre-requisites for working of BCM
3.3.2	Operations prior to deployment of machine
3.3.3	Operations during block
3.3.4	Operations after deployment of the machine
3.4	Shoulder Ballast Cleaning Machines
3.4.1	Operations prior to deployment of machine
3.4.2	Operations during block
3.5	Portal CraneS (PQRS)
3.5.1	General
3.5.2	Pre-requisites the
3.5.3	Pre-relaying operations
3.5.4	Post relaying operations
3.6	Track Relaying Trains
3.6.1	Operations Prior to Deployment of Machines
3.6.2	Manual operations during block
3.6.3	Post block operation
3.6.4	Precaution
3.7	Points and Crossing Laying Crane (T-28)
3.7.1	Pre-block operation
3.7.2	Operations during block
3.7.3	Post block operations
3.7.4	Miscellaneous

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